Burner.



A. R. THOMPSON.

BURNER.

APPLICATION EILED DEC.I5. 1915.

1,273,423. Patented July 23,1918.

ARCI-IIBALD R. THOMPSON, OF LAKEWOOD, OHIO.

BURNER.

Specification of Letters Patent.

Patented July 23, 1918.

Application filed December 15, 1915. Serial No. 66,887.

To all whom it may concern:

Be it known that I, Ancrunnno R. THOMP- soN, a citizen of the United States, residing at Lakewood, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Burners, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to burners that are adapted for use with either gaseous or liquid fuel, and when used in these respective connections act as regenerative gas burners or as vaporizing liquid fuel burners.

The invention has for its objects to provide a burner of the aforesaid character that is simple of construction; economical of production; convenient of use; that is safe; and that is practically odorless, the principle on which the burner operates insuring a more perfect combustion than prevails in the usual gas or liquid fuel burners, thereby obviating the unpleasant and injurious fumes incident to the use of burners of the aforesaid usual character.

A further object of the invention is to provide a burner of thcsort above described that is extremely efficient and which etl'ccts a material saving of fuel when used either as a liquid fuel or gas burner. lVhcn acting as a regenerative gas burner, the gas is passed through a chamber wherein it is subjected to the heat from the burner proper, causing an expansion of the gas, and combustion of the carbon therein, thus producing a highly combustible gas which burns with a very high degree of heat, the chemical composition of the gas being actually changed by this treatment, as will be understood by those familiar with the subject. When used as a liquid fuel burner, the fuel. is passed through the aforesaid chamber and under the influence of the heat from the burner, is converted into a highly inflammable gas or vapor, so that when it issues from the burner it burns with an intense heat and with the consumption of but a minimum amount of fuel.

A still further object of my invention is to provide a burner of the foregoing character within Which is incorporated a grid, preferably the burner and grid being formed of an integral casting.

' The foregoing objects, and others which will become apparent as this description proceeds, are attained in a burner constructcd in accordance with the accompanying drawing, and while I will proceed to describe the same in detail, 1 wish to be understood as not limiting myself to the structural details thereof further than is required by the terms of the annexed claims and is rendered necessary by the state of the prior art.

In the drawings, Figure 1 is a perspective view of the burner; Fig. 2 is a central vertical section through the burner, on the line 22 of Fig. 3; Fig. 3 is a similar view on line 33 of Fig. 2, this and the former view being taken at right angles to each other; Fig. 4: is a bottom plan view of the burner; and Fig. 5 is a top plan view of a modified form of the invention.

The burner is preferably composed of an,

integral casting comprising a fuel ditl'using and preheating chamber 1 and a burner chamber 2 that are connected by a wall 3, and between which communication is established through a conduit i, a wall 5 extending downward from the burner chamber to provide an air inlet passageway, the admission of air to such passageway being controlled by a shutter (3 having openings 7 which are adapted to cotipcrate with open- .ings 9 in the circular bottom 10 of the burner, said shutter being rotiatably connected to the burner bottom by a center bolt 11.

The burner shown herein is circular in plan, wherefore the preheating chamber 1 and the burner chamber 2 are annular and the wall 3 is frusto conical, the frusto conical shape ofthe Wall 3 result-ing from the preheating chamber being somewhat larger than the burner chamber, and from the fact, that the outer sides of both are connected by said wall. To increase the capacity of the preheating chamber, and also to provide a portion of it that is more effectively located with respect to the source of heat than the above mentioned annular portion, I provide a conduit 15 which extends diametrically across the preheating chamber and which terminates at one end adjacent the aforesaid conduit 4:, the opposite end being substantially in alinement with a threaded extension 16, for the application of a suitable supply connection, such being shown herein as a valve 17 which controls the supply of fuel from the pipe 18 to the burner. It follows, from the general shape of the burner, that the wall 5 is cylindrical, and that the shutter 6 is circular, the latter being pro- Formed about the inner side ofthe burner vided with an upwardly extending peripheral flange l9'which fits about the bottom of the burnerand which may be knurled, if desired, to facilitate turning or adjusting the shutter. V

The upper side of the burner chamber 2 (and it will be observed from Figs. 2 and 3 that this chamber is substantially circular in cross section) is provided with three series of apertures, the apertures of each series being arranged in a circle. The apertures of'all of the series. radiate substantially from the Center of the cross section of the burner chamber, and those of the inner series converge along lines which practically meet at the center of the conduitelo, while thoseof theouter series diverge along lines substantially parallel to the wall 8 and strike beneath the annular portion of the preheating chamber 1, the apertures of the central series extending substantially vertically through the wall of the burner chamber.

chamber, just below the inner'series of apertures, is a 'rib 25 which extends inward and upward from said chamber to the level of the top thereof, or higher, if desired, and

produces an annular trough 26.

For reasons of convenience and economy, I may cast integral with thepreheating chamber 1, a series of arms or ribs 30,;to form a grid for the support of utensils,

irons, and other articles. The upper edges of these'arms or {ribs are spaced some distance above the upper surface of the preheating chamber, and occupy the same plane as theupper edges of the transverse ribs or projections 31 of the conduit 15.. forming a grid, these arms orribs constitute elfective heat abstracting vanes for conducting heat ,to thepreheating chamber.

When the burner is used as a. regenerative gas burner, gas may be admitted to the preheating chamber by. opening :the valve 17, The gas accumulates and is difliused within said chamber and then passes clown- Ward through the conduit linto the burner chamber 2, from Where it issues through the apertures 20. At this pointit is mixed in proper proportions, with. the air that is rawn in through the bottom of theburner, the admission of the exact amount of air required to insure perfect combustion being governed by the'adjustment of the shutter 6. Now, when the burner is lighted, the products of combustion risefthrough the top of the burner, thoroughly heating the gas Within the preheating chamber. and .aitfc'cting it as. already described, the j ets'of gas issuing from the inner series of burner apertures impinging against the center of the conduit 15,, while those which issue trom'the outer series strike the bottom of the annular portion of the preheating chamber. I prefer to make the wall 3 of the burner solid forby Besides 7 so doing the combustion chamber will be protected against side drafts which 1t is believed might interfcrexsomewhat with a per- 26. The valve is then closed and the fuel lighted. The burning or this fuel heats the preheating chamber so that upon a subsequent opening of the valve, the fuelwhich passes through said chamber is vaporized and issues from the burner .aperturesin the form of hydrocarbon gas. This now being lighted constantly heats the preheating chamber and makes the forego ng operation ,continuous so thatthe; incoming liquid fuel is converted into gas before it is liberated from the burner. 7 1

While I have shown. and described the burner as circular, it is obvious that the shape may be varied without departing from the spirit of the invention. For instance, practically the same' burner herein illustrated may be elongated to produce an oblong or elliptical burner; or the same may be rectangular in shape, as shown in Fig.

ln said Fig. 5,. the equivalents of the parts of the previous form are referred to by the same reference numerals, augmented by the exponent a. I

Having thus described my invention, what I claim is.:'. V r

. l. In a burner of the character described, the combination of afue'l diifusinga-nd preheating chamber having an inlet and come prising a continuous passageway, a conduit connecting opposed portions of said 1011 8111 ber, a burner chamber located beneath the first mentioned'chamber, a, conduit commu}. nicatively connecting said first mentioned chamber and thebur-ner. chamber, a wallextending between theaforesald chambers and IIIClOSIDg JJ combustion chamber, the combustion chamber having an airadmitting. opening, the burner chamber having ;a;per

tures,a trough supported adjacent the apertures oi the burner chamber and into which the burner chamber may. Aoverfiow, and

means for controlling the supply of airto.

the combustion, chamber,

2. In a burner of the character described,

the combinationofafuelditfusing and pre heating chamber having an inlet and com- "prising a continuous passageway,across conduit connectingopposed portions of said chamber, a burner chamber located :beneath the first mentioned,chamberand having a series of apertures, a conduit communicatlvely connecting the first mentionedchamberand the burner chamber, a wallezitending between said chambers and inclosing a combustion chamber, awall extending downward from the burner chamber thereby to provide an air inlet passageway, and means for controlling the supply of air through said passageway.

3. In a burner of the character described, the combination of a fuel difl'using and preheating chamber having an inlet and comprising a continuous passageway, a cross conduit connecting opposed portions of said chamber, a burner chamber located beneath the first mentioned chamber, a conduit communicatively connecting the first mentioned chamber and the burner chamber, a wall extending between said chambers and inclosing a combustion chamber, a wall extending downward from the burner chamber thereby to provide an air inlet passageway, means for controlling the supply of air through said passageway, the burner chamber having a series of apertures, and a trough supported adjacent the apertures ot' the burner chamber and into which said chamber may overflow.

at. In a burner of the character described, the combination of a fuel diffusing and preheating chamber having an inlet, a burner chamber located therebencath, a conduit communicatively connecting said chambers, a wall extending between said chambers and inclosing a combustion chamber, a wall extending downward from the burner chamber thereby to provide an air inlet passageway, means for controlling the supply of air through said passageway, the burner chamber having a series of apertures, and a trough supported adjacent the apertures 01 the burner chamber and into which said chamber may overflow.

5. In a burner of the character described, the combination of a fuel diffusing and preheating chamber having an inlet, a burner chamber located therebeneath and having a series of apertures, a conduit communicatively connecting said chambers, a wall extending between said chambers and inclosing a combustion chamber, a wall extending downward from the burner chamber thereby to produce an air inlet passageway, and means for controlling the supply of air through said passageway.

6. A burner of the character described comprising an annular preheating chamber having an inlet, an annular burner chamber located therebeneath and of less diameter than the preheating chamber, a frusto conical wall connecting the outer sides of said chambers, a conduit through which communication is established between the preheating and burner chambers, a cylindrical wall extending downward from the burner chamber thereby to provide an air inlet passageway, a circular wall extending across the lower end of said passageway, said wall being provided with air inlet openings, a shutter rotatably secured to said wall and having openin s that. are adapted to cooperate with those or the wall, the burner chamber having apertures, and a ridge extending inward and upward from the burner chamber to provide a trough into which the burner chamber is adapted to overflow.

7. A burner 01 the character described comprising an annular preheating chamber having an inlet, an annular burner chamber located therebeneath and of less diameter than the preheating chamber, said burner chamberhaving apertures, a frusto conical wall connecting the outer sides of said chambers, a conduit through which communication is established between the-proheating and burner chambers, a cylindrical wall extending downward from the burner chamber thereby to provide an air inlet passageway, a circular wall extending across the lower end of said passageway, said wall being provided with air inlet openings, and a shutter rotatably secured to said wall and having openings that are adapted to cooperate with those oi the wall.

8. A burner oi the character described comprising an integral casting that is termed with an annular preheating cham ber having an inlet extension, an annular burner chamber located therebeneath and of less diameter than the preheating chamber, said burner chamber having apertures, a frusto conical wall connecting the outer sides of the aforesaid chambers, a conduit through which the preheating and burner chambers connnunicate, a cylindrical wall depending from the burner chamber thereby to provide an air inlet passageway for the burner, a circular wall extending across the lower end of such passageway and having air inlet openings, and a shutter rotatably connected to such wall and having openings that are adapted to be brought into register with the openings of the circular wall.

9. A burner of the character described comprising an integral casting that is formed with an annular preheating cham ber, a conduit communicatively connecting diametrically opposed portions of the preheating chamber, said chamber having an inlet extension adjacent one end of said conduit, an annular burner chamber located beneath and of less diameter than the preheating chamber, a conduit con'nnunicatively connecting the preheating chamber adjacent the end of the aforesaid conduit remote from the inlet extension with the nearest portion of the burner chamber, the burner chamber having apertures, a ridge extending inward and upward from the burner chamber thereby to form a trough into which the burner chamber is adapted to overflow through its apertures, a frusto conical wall connecting the outer sides of aperturesof the burner chamber diverging to direct the jets of gas which issue therefrom against the annular preheating chamher, while" others of the apertures converge to direct the jets issuing therefrom against the fir st mei'itioned conduit.

l0; Av burner'of the character described com-pr s ng an integral casting that 1s formed with an annular preheating chamber, aaconduit co nmunicatively connecting diametrically opposed portions of the preheating chamber, said chamber having an inlet extension adjacent :one end of said conduit, an annular burner chamber located beneath and of less diameterthan the preheating chamber; a conduit communicatively connecting the preheatingchainber Copies of this patent may be obta'i ned fpr adjacent the end of the aforesaid vconduit remote from the inlet extension with the nearest portion of the burner chamber, the burner chamber having apertures; a -lfrusto conical wall connecting the outerasides i-of J.-

the aforesaid chambers, a cylindrical wall extending downward from the burner cha1nher and inclosing an air inlet passageway; a circular wall extending across the bottom' of said passagexvay and having air inlet openings, and a shutter rotatably connected to said wall and having openings that are 7 adapted to be brought into register with the openingsof said wall, certain of the apertures of the burner chamber diverging to direct the jets of gas which issue therefrom against the annular preheating :cliambe'r,

while others of the apertures converge to;

direct the jets issuing therefrom against the first mentioned conduit. I

In testimony whereof I iheizeunto affix my signature in the presence ottwo witnesses ARGHIBALD R. THOMPSON. iVitnesses R. L. Bnucis, H. B. MoGILL.

five cents each, by addressing the Commissioner of intents, Washington, .D.G. 

